This is where the harmonic balancer comes in. The circular device, made of rubber and metal, is bolted at the front end of the crankshaft to help absorb vibrations. It's usually connected to the crank pulley, which drives accessories like the air conditioner.
Additional costs: Ground water wells can also be tested for radon, then, if needed, can get a water radon mitigation system installed. Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually.
If this is the case, the situation can be remedied by a radon mitigation system, which can cost anywhere from approximately $1,000 â $2,000 (at least this has been my experience) depending of the type of system and the specific characteristics of the home. The cost of the actual radon test itself is not expensive. Some home inspectors will provide an AccuStar kit to test the radon for which they charge their clients $65âish (give or take), while others bring a machine for which they charge $125âish (give or take).